And clarence g



(No Model.)

W. T. ANGELL & O. G. TAYLOR.

RUMBLE.

No. 440,820. Patented Nov. 18, 1890 versing the motion of the box or cylinder,

UNITED STATES PATENT CFFICE.

\VILLIAM T. ANGELL, OF ST. LOUIS, MISSOURI, AND CLARENCE G. TAYLOR, OF ANN ARBOR, MICHIGAN.

RUMBLE.

SPECIFICATION forming part of Letters Patent No. 440,820, dated November 18, 1890.

Application filed April 14, 1890. Serial No. 347,885. (No model.)

To aZZ whom it may concern.-

Be it known that we, ILLIAM T. ANGELL, a citizen of the United States, residing at St. Louis, in the State of Missouri, and CLARENCE G. TAYLOR, a citizen of the United States, residing at Ann Arbor, county of WVashtenaw, and State of Michigan,have invented certain new and useful Improvements in Rumbles; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention has particular reference to that class of machines which are used in cleaning, grinding, and polishing castings and similar articles, and which is generally designated as rumbles.

The purpose of the invention is to provide a rumble into which the castings and similar articles can be readily placed, and from which they can be quickly discharged by simply rethereby producing a saving of time in charging and emptying the cylinder.

The improvement consists, essentially, of a scroll-shaped rumble, an inclined grating beneath the cylinder to receive the castings after they are discharged from the rumble, and the peculiar construction, arrangement, and adaptation of parts, which will be hereinafter more fully described and claimed, and which are shown in the accompanying drawings, in which Figure 1 is a front elevation of a machine embodying our invention. Fig. 2 is an end view of the machine. Fig. 3 is a detail view of the frame. Fig. 4 is a vertical section on the line a; roof Fig. 3. Fig. 5 is a top and side View of the slats, which form the sides of the rumble.

The rumble is scroll-shaped in cross-sec tion, and its ends are separated sufficiently far to permit the entrance and exit of castings and other articles, which are usually cleaned by attrition in a rotating cylinder or rumble-barrel.

This rumble is essentially a cast-metal machine, and is composed of similarly-constructed scroll-heads 0, having flange a projecting inward from their opposing sides, and the slats or bars .D arranged around the said heads and secured thereto at their ends. These bars or slats are braced and strength ened by having ribs (I cast upon their rear sides. These ribs d taper at each end to the plane of the bar, and project therefrom midway between the edges of the said slat or bar. The slats are supported at their ends by the flange a, and are secured to said flange by suitable fastening devices, as bolts 01', which pass through the slats or bars and through the said flanges a.

The standards G G-two in number- -are placed at a proper distance apart to receive the rumble between them. The upper ends of the standards are recessed to form an oilchamber O,and the two roller-bearings F and F are journaled at their ends in the sides of the said oil'chamber, and the latter is closed by the cap P, which is bolted in place. The shaft A, on which the rumble is mounted, is journaled in the standards and rests on the roller-bearings F and F. The gear-wheel V on the end of the shaft A meshes with the pinion IV on the counter-shaft I, which is driven in any convenient manner, preferably by a belt, (not shown,) which passes around the band-pulley S on the shaft I. This shaft I is journaled on the standards, being held thereon by the cap-plates 1-1.

The inclined grating below the rumble is composed of cross-bars N, which have open ings near each end, and the tie-bars L L, whichpass through the openings in the bars N, and the openings Z Z in the standards. The upper end of the grating is further supported by the bar M, which is supported at its ends on the bars or projections K on the inner side of each standard.

In addition to the band-pulleys S on the shaftI there are provided two pulleys R and T, one on each side of the band-pulley S. The pulley S is keyed to the shaft I in the usual way, and the pulleys R. and T are what is known as loose pulleys. The open belt runs on the pulleyR and the cross-belt on the mo pulley I. It is obvious that the rumble may be rotated in either direction by shifting the open or the cross belt onto the pulley S.

The articles to be cleaned, secured, or polished are placed in the rumble and the latter is rotated to the right, as indicated by the arrow. When the articles are sufficiently treated, the rumble is driven in the reverse direction,which causes the articles to be dis charged onto the inclined grating, down which they glide to a suitable receptacle placed at the lower edge of the grating for their reception.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A rumble composed of heads, and slats touching at their edges and extending from one head to the otherand arranged in aspiral form around the heads and provided with exterior longitudinal ribs, substantially as described.

2. A rumble composed of heads and castmetal slats or bars secured at their ends to the said heads, and having ribs upon their 25 external sides, which ribs taper at their ends to the plane of the bars, substantially as set forth.

3. An imperforate rumble composed of castmetal heads having a scroll-flange projecting 0 from their opposing sides and slats or bars between the said heads and secured at their ends to the scroll-flanges, substantially as set forth.

In testimony whereof We affix our signa- 35 

